[Ljava.lang.Object; cannot be cast to com.lglsys.entity.EntityName - database

Question

I was trying to get specific data from database but every time I'm getting the following error!
java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to com.lglsys.entity.TDasProductDownload
So this is my QueryService class
#Dependent
public class QueryService {
List<TDasProductDownload> downloadLink = new ArrayList();
final private Logger logger =
LogManager.getLogger(QueryService.class.getName());
#PersistenceContext(unitName="DownloadServices")
EntityManager em;
public QueryService() { super(); }
public List<TDasProductDownload> findAllDownloadLinks() {
try {
downloadLink=
em.createQuery(queryForDownloadLinks,TDasProductDownload.class)
.getResultList();
return downloadLink;
} catch (Exception e) {
logger.info(e.toString());
return null;
}
}
}
program gives error in this class /
EndPoint class
public class PreControlWSEndPoint {
private Session session;
final private Logger logger = LogManager.getLogger(PreControlWSEndPoint.class.getName());
List<TDasProductDownload> downloadLink = new ArrayList();
#PersistenceContext(unitName="DownloadServices")
EntityManager em;
#Inject
QueryService service;
#OnOpen
public void Open(Session session) throws IOException, InterruptedException {
this.session = session;
this.sendMessage("Connection Oppened");
logger.info("EndPoint Opened");
try {
downloadLink = service.findAllDownloadLinks();
logger.info(downloadLink.size());
TDasProductDownload str = downloadLink.get(0);
logger.info(str.getDownloadStatus()); //**Eror line!!**
} catch (Exception e) {
logger.info(e.toString() + " .D");
}
}
#OnMessage
public void onMessage(String message) {}
#OnClose
public void Close() {}
}
I can't see what's happening in my code.

Answer 1

I fixed it!
public List<String> findAllDownloadLinks() {
try {
downloadLink=
em.createQuery(queryForDownloadLinks,String.class)
.getResultList();
return downloadLink;
} catch (Exception e) {
logger.info(e.toString());
return null;
}
}
then i can print like so
for(int temp=0;temp<=downloadLink.size();temp++){
logger.info(downloadLink.get(temp));
}